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https://issues.apache.org/jira/browse/HDFS-13857?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16595227#comment-16595227
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Íñigo Goiri commented on HDFS-13857:
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Thanks for [~hfyang20071].
I think we still need the false case unit test where we expect the new
exception because the path is not defined.
We would have a mount point in say /a, this should succeed, then when testing
/, we should get an exception.
> RBF: Choose to enable the default nameservice to write files.
> -------------------------------------------------------------
>
> Key: HDFS-13857
> URL: https://issues.apache.org/jira/browse/HDFS-13857
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: federation, hdfs
> Affects Versions: 3.0.0, 3.1.0, 2.9.1
> Reporter: yanghuafeng
> Assignee: yanghuafeng
> Priority: Major
> Attachments: HDFS-13857.001.patch, HDFS-13857.002.patch
>
>
> The default nameservice can provide some default properties for the namenode
> protocol. And if we cannot find the path, we will get a location in default
> nameservice. From my side as cluster administrator, we need all files to be
> written in the location from the MountTableEntry. If no responding location,
> some error will return. It is not better to happen some files are written in
> some unknown location. We should provide a specific parameter to enable the
> default nameservice to store files.
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